Copy one statement at a time into a new R session. When you get an error you will know what you need to look at more closely. RStudio makes this easy with the Start New R Session menu option and using Ctrl-Enter in the editor. -- Sent from my phone. Please excuse my brevity.
On March 11, 2017 11:53:41 AM PST, lily li <chocol...@gmail.com> wrote: >I think this is the problem. How to solve then? > >On Sat, Mar 11, 2017 at 12:18 PM, Bert Gunter <bgunter.4...@gmail.com> >wrote: > >> Typo, should be: >> >> 3. A guess: You are sourcing the entire script in the editor panel >> into R, and there is something screwed up there. >> >> -- Bert >> >> >> Bert Gunter >> >> "The trouble with having an open mind is that people keep coming >along >> and sticking things into it." >> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) >> >> >> On Sat, Mar 11, 2017 at 11:14 AM, lily li <chocol...@gmail.com> >wrote: >> > Thanks for your reply. I thought anything about R questions can be >posted >> > here. >> > >> > About your third point, what does it mean? I did the same thing >before >> for >> > other scripts, but this one does not work. Thanks again. >> > >> > On Sat, Mar 11, 2017 at 12:12 PM, Bert Gunter ><bgunter.4...@gmail.com> >> > wrote: >> >> >> >> 1. Not reproducible, hence impossible to say. >> >> >> >> 2. This is r-help. RStudio is totally separate and its own support >page. >> >> >> >> 3. A guess: Use are sourcing the entire script in the editor panel >> >> into R, and there is something screwed up there. >> >> >> >> Cheers, >> >> Bert >> >> >> >> >> >> Bert Gunter >> >> >> >> "The trouble with having an open mind is that people keep coming >along >> >> and sticking things into it." >> >> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) >> >> >> >> >> >> On Sat, Mar 11, 2017 at 10:50 AM, lily li <chocol...@gmail.com> >wrote: >> >> > Hi R users, >> >> > >> >> > I have a problem about using R studio. For example, there is a >> dataframe >> >> > that has many columns. I want to aggregated column X and column >Y into >> >> > column Z. Column Z does not exist before the aggregation. I use >the >> code >> >> > below: >> >> > df$Z = df$X + df$Y >> >> > >> >> > However, it does not work in the top left panel in Rstudio, and >has >> the >> >> > following warning message: >> >> > Error in `$<-.data.frame`(`*tmp*`, "Z", value = numeric(0)) : >> >> > replacement has 0 rows, data has 34333 >> >> > >> >> > If I type the same code in the Console panel (bottom left >panel), it >> >> > works. >> >> > How to deal with this problem? Thanks. >> >> > >> >> > [[alternative HTML version deleted]] >> >> > >> >> > ______________________________________________ >> >> > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, >see >> >> > https://stat.ethz.ch/mailman/listinfo/r-help >> >> > PLEASE do read the posting guide >> >> > http://www.R-project.org/posting-guide.html >> >> > and provide commented, minimal, self-contained, reproducible >code. >> > >> > >> > > [[alternative HTML version deleted]] > >______________________________________________ >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide >http://www.R-project.org/posting-guide.html >and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
